Nut lock



Dec, 28 1926. 1,612,128

A. A. KACZMAREK NUT LUCK Filed May 11, 1926 Inventor jlexiA/Ikczmarei Attorney Patented Dec. 28, 1926.

UNITED STATES isialzs PATENT OFFICE.

NUT LOCK.

Application filed May 11,

The present invention relates to nut locks and aims to provide an exceedingly simple construction that may be manufactured at very low cost but will prove thoroughly etiicient and reliable in use, strong and durable, not likely to easily become out of order and otherwise well adapted for the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds the invention. resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing i igure 1 is a sectional view through a nut, showing my invention incorporated hereof and showing a bolt in elevation.

Figure 2 is a plan view 01 a washer which may be used with my improved nut lock.

Figure 3 is a plan view of a nut embodying the features of this invention.

Reterring to the drawing in detail it will be seen that the numeral 5 designates a nut which is provided with the usual threaded bore 6 imengaging the threaded portion of a bolt 7. A washer 8 may be mounted. on the bolt between the nut 5 and an object 5) through which the bolt passes. This masher is provided with a countersunk opening it) in order that a fastening element ll may pierce the same and be driven into the object 9 and diametrically opposed to the opening 10 another opening 12 is provided. if desired, the opening may be in the form of a recess or if desired a re cess may be provided in the object The no 5 is provided with an oil center bore rslatively large portion 1% and '1 37 small inner portion 153. recess vided at the entrance of the wnich may be belt in place by screws 18 and has an opening 19 or" the same diameter with the small portions ot the off center bore. A plunger 20 has its ends slidable in the small portion 15 and through the opening 19 of the plate 17. On an intermediate portion of the plunger there is provided an 1525. Serial N0. 103,313.

enlargement or head in the nature of an annular flange 21 which is slidable in the large portion 14'. A spring 22 is disposed about the plunger 20 and impinges against the head 21 and the shoulder formed at the juncture of the portions 14 and 15 of the off center bore and normally hold the outer end of the plunger projected so as to engage in the opening 12 for locking the nut on the bolt.

From the above detailed description it will be seen that I have provided a very simple not lock structurethat is exceedingly compact in its arrangement of parts and is thoroughiy convenient from the standpoint of manufacture and assembly and disassembly. The present embodiment of the invention has been disclosed in detail merely by way of example since in actual practice it attains the features of advantages enumerated as desirable in the statement of the invention and the above description. it will be apparent that changes in details oi. cor-.struction may be resorted to without departing tron-'1 the spirit or scope of the invention as hereinafter ciaimed or sacrificing any of its advantages.

i iaving thus described my invention, what I claim as new is As a new article of numutactiire a nut loch oi the class described including a nut having an oli' center recess provided with a large portion and a small inner portion and a roces t the entrance of said oti' center here, a plate fixed in the recess aud'havan opening equal in diameter to the small portion oi the oti center bore a plunger idable in the small portion oi' the oil 51' center bore and through the opening of the plate, an e .rgement on the plunger slidable n the lame portion of the off center bore, n a spring disposed about the plunger and .npinging against the enlargement on the plunger and a i'shmilder formed by the juncture of the large portion and small portion o1 the oil center bore.

in testimony whereof I atlix my signature.

ALBERT ANTONY KAGZMA EEK.

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